Commonly occurring product ions for PE(19:0/20:5(5Z,8Z,11Z,14Z,17Z))) (View full structure)
| m/z | Ion Description | Structure (click to enlarge) |
|---|---|---|
| 778.5392 | Precursor ion [M-H]- |  |
| 498.2626 | Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]- |  |
| 494.3252 | Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]- |  |
| 480.2521 | Neutral loss of sn1 RCOOH group from [M-H]- |  |
| 476.3147 | Neutral loss of sn2 RCOOH group from [M-H]- |  |
| 301.2173 | sn2 RCOO- ion |  |
| 297.2799 | sn1 RCOO- ion |  |
| 257.2275 | Loss of CO2 from sn2 RCOO- ion (PUFA) |  |
| 152.9958 | Glycerol-3-phosphate ion with loss of H2O |  |
| 140.0118 | Ethanolamine phosphate ion |  |
| 122.0013 | Ethanolamine phosphate ion with loss of H2O |  |
| 96.9696 | H2PO4- ion (from phosphate) |  |
| 78.9591 | PO3- ion (from phosphate) |  |